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A. T. BROWN LOGK MECHANISM FOR GONCEALBD HAMMER GUNS. No. 345,362. Patented July 13, 1886.

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NITED STATES PATENT FFICE.

ALEXANDER T. BBOVVN, OF SYRACUSE, NEIV YORK.

SPECIPICATION fOIming part of Letters Patent No. 345,362, dated July 13, 1886.

Application filed April 8, 1886. Serial No. 198,176.

To aZZ whom it may concern.-

Be it known that I, ALEXANDER T. BROWN, residing at Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Look Mechanisms for Concealed-Hammer Guns, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to the lock mechanism of concealed-hammer, or so-called hammer-less, guns.

The invention consists in the improved mechanism by which the hammers or strikers are cooked; also, in the safety-catch by which the hammer is held in cocked position.

In the drawings, Figure 1 is a perspective view of the frame, showing the oscillating bars and hammers. Fig. 2 is a side elevation of the breech mechanism, and so much of the look as is necessary to illustrate the invention. Fig. 3 is a front end view of the frame.

A-indicates the recoil-plate of a breakdown gun, and B B the straps constituting the frame to which the barrel is pivoted. In a doublebarreled gun two rock-shafts, G O, are placed in perforations extending lengthwise of these straps, The front ends of these rock-shafts or rods have cranks D D attached thereto, these cranks extending into a slot in the fore-end E. By this arrangement of the rock-shafts and cranks the rock-shafts are partially turned on their axis when the gun is broken down, by reason of the movement of the fore-end on the hinge. The rear end of each rock-shaft C has an arm, F, projecting at about a right angle to its axis. The rocking of the shaft by the breaking down of the barrel causes this arm F to rise, and as the arm projects under the front end of hammer G the hammer is thrown back to full-cock by this breaking down of the barrel.

IVhen hammer G is cocked, it is caught by a scar, as H, engaging a notch therein. A mainspring, I, presses the hammer forward. The sear H is held by the trigger in any usual manner, one plan being indicated in dotted lines, Fig. 2.

A rod, K, has a fork or loop resting on the arm H of the sear, and extending up to the (No model.)

tang M of the gun. The top of this rod K is held by a button, N, which button maybe extending into hole or depression Pin the tang, and the sear will release the hammer; but when the thumb piece or catch L is drawn back the bar K is swung away from the hole or depression P in the tang, and thus will not be permitted to rise. Consequently the sear cannot be unlocked from its engagement with the hammer.

Heretofore the device for locking the sear or trigger has usually been pivoted in the frame, wherethe operation has been by means of a puslrbutton on the tang. I do not attach the rod K to the frame at all; hence it can be made more cheaply and applied more readily.

It is obvious that the safety pin or bar K may engage some other part of the look as well as the sear.

The form of the hammer will correspond to the style of gun used. The same mechanism for cocking and the same sat'ety-detent may be used in nearly every form of concealedhammer breakdown guns, whether made with or without a separate tiring-pin.

It must be understood that the rocking of the rock-shaft O is caused by the movement of the barrel in breaking down or opening the breech, and that this rockshaft may be connected to and caused to move with the barrel by other means than by the fore-end, as by a hook or link on the barrel engaging an arm on the rock-shaft. The construction shown in Figs. 2 and 3 is a preferred one.

It will be understood that a safety device for holding the hammers cocked is almost a necessity in concealed-hammer guns, as without such device there is great danger that the gun may bedisehargcd by an accidental touch of the trigger.

I claim- 1. The combination, with the frame of a breakdown gun, of a longitudinal rock-shaft having an arm on said shaft engaging the harm mer, and connection from the barrel to the rock-shaft, whereby when the breech is opened the shaft will be rocked and the hammer cocked.

2. The combination, with the frame of a breakdown gun, of a longitudinal rock-shaft therein, an arm on said rock-shaft bearing on the hammer in front of the hammer pivot, and an arm engaging with the fore-end stock, whereby the rock-shaft is oscillated and hammer cocked when the gun is broken down.

3. lhe combination, with the sear, of a rod projecting upward from the same and disconneoted from the frame, the tang having a perforation above this rod, and apush-button and its operating-slide, the button embracing the upper end of the upwardly-projecting rod, so as to push it into line with or away from the perforation in the tang, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ALEXANDER T. BROWVN. \Vitnesses:

O. W. SMITH, L. 0. SMITH. 

